NTE1248 데이터 시트보기 (PDF) - NTE Electronics

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NTE1248

Integrated Circuit Phase Lock Loop (PLL) FM Multiplex Stereo Demod

NTE Electronics 

Electrical Characteristics: (TA = +25°C, VCC = 12V, VIN = 350mV, L + R = 90%, Pilot = 10%,

f = 1kHz unless otherwise specified)

Parameter

Symbol

Test Conditions

Min Typ Max Unit

Input Voltage

Input Impedance

Channel Separation

VIN1 THD = 1%, L + R = 90%, P = 10% 350 –

VIN2 THD = 1%

350 –

Zin

– 30

Sep

35 40

– mV

– mV

– kΩ

– dB

Output Voltage

Channel Balance

VOUT VIN = 350mV

CB

– 310 – –

– – 2 dB

Total Harmonic Distortion

THD

– 0.3 – %

Lamp Voltage

Lon Pilot Level

– 6.5 – mV

Hysteresis

Hys

– 3 – dB

Capture Range

CR

– ±5 – %

Carrier Leak

CL f = 19kHz

– 35 – dB

f = 38kHz

– 45 – dB

SCA Rejection Ratio

SCA–R L + R = 80%, P = 10%, SCA = 10% – 80 – dB

Threshold Voltage

VTH

Supply Voltage

VCC

Quiescent Current

IQ

–1–V

5.4 – 14 V

– 15 – mA

Pin Connection Diagram

VCC 1

Demodulate FM Input 2

Demodulate FM Input 3

Lt Audio Output 4

Rt Audio Output 5

Stereo Indicator Lamp 6

GND 7

Separation Control 8

16 VCO Frequency Control

15 Phase Det Output to VCO

14 Phase Det Output to VCO

13 Phase Det Input

12 19kHZ Test Point

11 Phase Det Output to Switch

10 Phase Det Output to Switch

9 IF Muting Circuit

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